William s



UNITED STATES PATENT OFFICE.

IVILLIAM S. CARR, OF NEIV YORK, N. Y.

SUPPLY-COCK.

Specification of Letters Patent No. 19,013, dated January 5, 1858.

To all whom it may concern:

Be it known that I, VILLXAM S. CARR, of the city, county, and State of New York, have invented, made, and applied to use a new and useful Improvement in Cocks for Connecting a Primary and Secondary Supply with Hot-\Vater Boilers; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing, making part of this specification, wherein Figure 1., is a vertical section of my improved cock, and Fig. 2, is a view illustrating the occasion in which said cock is required and showing the general manner of applying the same in connection with the other parts of the hot water apparatus of buildings.

Similar marks of reference indicate the same parts.

In dwellings and other buildings both in the country and in cities, a competent supply of water is brought in by means of a suitable pipe, but such supply, although abundant, on high ground particularly often does not have sutticient head or pressure to rise above the first or second floors of the buildings, hence it has been found necessary to place a cistern in some convenient locality near the top of the house, and pump up water into the same so as to supply the upper floors of the buildings. If the water required for the lower floors were drawn from this, much unnecessary work would be expended in pumping, and in almost all houses 'supplied with water in this manner, another element comes into the arrangement, viz., a supply of hot water, both in the kitchen and also in the other floors of the house; and if the said boiler were connected with the cistern or reservoir aforesaid, the hot water drawn in the kitchen would be replaced by the secondary supply from said cistern instead of by the primary supply at a less pressure from the street main or other source. To obviate this difiiculty the hot water boiler has been made double so as to prevent the water down stairs being drawn from the cistern, but this arrangement requires a greater number of pipes, as Well as a more costly boiler.

The nature of my said invention consists in a peculiarly constructed cock connecting the primary and secondary supplies of water with the boiler in such a manner that hot water can be drawn out of said boiler in the kitchen or other lower stories under the pressure only of the primary supply of water, and said primary supply passes into the boiler driving out the hot water as the same is drawn; and the instant the cock in the kitchen or lower floor is closed, hot water can be drawn out of the same boiler through the agency and pressure of the secondary supply from the reservoir or cistern, in any of the upper floors, thus dispensing with double boilers and also providing for the use of the primary supply at a less pressure where the same may be available and only using the secondary supply in the upper parts of the building where the primary supply has not sufficient head and pressure.

The diagram Fig. 2, illustrates the general position in which I place my improved cock and shows the occasion for so placing it; the details of the arrangements of the pipes must of course be varied to suit circumstances.

a, is the Water back or heater placed in the fire.

6, Z), are the circulating pipes to the boiler 0.

(Z is the pipe from the street main or other primary supply of water.

6, is a pump to force water up into the reservoir or cistern f.

The pipe g forms the secondary supply to the boiler.

The pipe it, leads the cold water into the boiler by a descending pipe shown by dotted lines in the usual manner.

2', is the pipe in the top of the boiler to convey away the hot water.

1, is the cold, and 2, the hot water cocks or faucets in the kitchen or lower floor or floors and 8, and 4, are the hot and cold water faucets or cocks for the upper floor or floors.

The cock A, in which my invention consists is located at the junction of the pipes (Z, of the primary and g, of the secondary supplies of water and the pipe h, to the boiler.

is is a valve in the cock A, opening upward by the primary supply from the pipe cZ.

Z, is a seat formed in the cock by a division 5, in such a manner that water passing from the pipe 9 goes through said seat in the direction of the arrow to the pipe h. Over this seat Z, is a diaphragm w of india intervening, and this plunger is forced toward the seat Z, by a regulated amount of power from the lever 11, and weight 0, or equivalent device.

The cock A and parts are to be sustained on a plate 7), or similar device.

The secondary supply of water being of greater pressure than the primary supply, the valve 71:, will be kept shut, except when drawing .water from the cock 2, and the lever n, or its equivalent is to be so weighted that the pressure of the secondary supply is always sufiicient to keep the diaphragm w, from the seat Z, if then the cock (or cocks) 3, be opened the water from the cistern runs through the seat Z, into the boiler forcing out the hot water by said cock 3, but if the cock 2, be'opened there is immediately a minus pressure in the pipes, the diaphragm 00, is forced onto its seat Z, the secondary supply is shut off, the primary supply (65) raises the valve is, and passes into the boiler (c). As soon as-the cock 2, is shut the pressure is again instantly equalized to that of the secondary supply, the diaphragm m, is

raised and hot water can be drawn from 7 connection with such two supplies and a hot water boiler, nor do I limit myself to the manner of arranging the water pipes shown in Fig. 2, as the same forms no part of my invention but \Vhat I claim as my invention and desire to secure by Letters Patent is A weighted diaphragm (:v,) or its equivalent, and seat Z, between the secondary supply and the hot water boiler, in combination with the valve 70, or its equivalent between the primary supply and the hot Water boiler, substantially as and for the purposes specified.

In witness whereof I have hereunto set my signature this twenty fourth day of November 1857.

WILLIAM S. CARR. Witnesses:

LEMUEL W. SERRELL, THOMAS Gr. HAROLD. 

